Using a dimmer and LED lamps I often find the LED lamps produce so called 'Ghosting' when Off. i.e. they glow slightly.  Today, my 25watt LED R7s tube arrived and was fitted to a Daughter and Child floor standing up lighter in place of the 150watt Halogen tube, in an attempt to save energy/money! But LED ghosting occurred. The same happened when I replaced two parallel wired ceiling light lamp fittings with LED lamps instead of the 6 x 40 watt filament lamps. Here I have had to replace one LED lamp in each fitting with a standard filament lamp, which immediately stopped the ghosting effect. See topic herehttps://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1646071303

It seems there are two fixes 1) Use a dimmer with neutral capacity or 2) Fit a special capacitor across the load. But this means several capacitors would be needed - one for each light fitting!  These are not cheap either.

Question...Is it a case now in the UK that having a neutral at the wall switch is a common wiring practice? I have always seen and used loop in wiring at the ceiling rose with just line and switched line being at the wall switch.  To add a neutral and a specal dimmer would involve a lot of work rewiring, chasing walls and the special dimmer costs!  Hardly any saving then!!  

Or am I missing something??